[FBN Firebird Nation]

One of the most common questions we get from the V6ers is how to perform a V6 to V8 swap. My goal for this thread is to find as much information as I can find for our members in order to make the swap as easy as possible. In addition, if you have anything to add, please feel free to add your own information here. I would also like to keep all discussions on the v6 to v8 swap in this thread if possible. On to the links:

3.4 / 3.8 V6 to LT1 Swap Chart - This covers all the differences and what you will need to swap the 3.4 / 3.8 to an LT1.

3.4 / 3.8 V6 to LS1 Swap Chart - This covers all the differences and what you will need to swap the 3.4 / 3.8 to an LS1.

3.4L V6 to LT1 Complete Swap - This site takes you through the entire 3.4L V6 to LT1 swap, and includes a parts list and other information you will find useful.

More to come...

 

[Klickmania]

A lot of great info Bob!

Hopefully this will help answer a bunch of questions people may have!

- Spencer

 

[SySTeMaT1c]

Thanks Bob! Great post, this will help me out a lot!!

 

[96fbody]

cant wait to do this to my car

 

[SnIpEr]

Thanks a lot! Any more info coming soon :]

 

[FBN Firebird Nation]

Thanks, good to hear some have found it useful.

 

[Pete W]

Excellent Bob!

 

[rapidfire]

Is there any info and photos on swaping out a v6 for an early v8. I would like to install a 383 stroker carbureted engine. And will it bolt up to a 5 speed manual trans. I am going to make a new wiring harness for the car and put in all VDO gages. Roll cage.

 

[ADG]

around how much money would you think someone would have to drop to pull this off??

 

[FBN Firebird Nation]

I have no idea.

 

[Ice Cold 975]

so let me get this str8, all you need it the trans, motor and radiator?

 

[Brandnew3773]

I noticed on the conversion charts it has 98', 99', 00', 01', and 02' swap chart for the LS1 only but not the LT1. It this because those years won't take an LT1 engine or is there some other issue? I am asking because I have a 98 V6 and I want to put a LT1 engine in because its significantly cheaper than the LS1 but I am not sure how to go about it since the diagrams and charts don't say anything about an LT1 swap for my car. Any ideas? Thanks.

 

[72 blackbird]

Why would you want to swap in an LT1 over an LS1? GM made alot of the mistakes on the LT1 to come up w/ the LS1, I see no point in picking the older engine over the technologically superior one. Cost may be a factor, but unless you're going to do everything yourself your savings will be eaten up by repairs and downtime common with the LT1.

Geno

 

[FBN Firebird Nation]

What common problems with the LT1? I found the LT1 to be a rather reliable engine. Or course if I had a choice between an LS1 or LT1, I would definitely pick the LS1.

 

[slackerr26]

hey now dont hate on the lt1. ive seen some mighty fast cars running LT1s. it might not be as easy to get there as it is in an ls1, but with the right setup you can make sick power

 

[Damenous]

Definitely going to do this. Hopefully I can build the engine from the ground up so I can knock out the performance parts I want to do to it while its still out of the car.

 

[Soccerluver13]

LS9. That's all i want. I can only imagine my car with that beauty inside. Gotta start saving! Gonna take me a while...

 

[Bailey_Alex]

What about a 2.5L V6?

 

[zionsdeath]

nice info

 

[92 Trans Am]

Can anyone help me find a thread to swap a 3.1 v6 to a 305 SBC?